Tractor tilt-back seat bracket



July 29, 1952 F. J. BONN-ESEN 2,604,927

TRACTOR TILT-BACK SEAT BRACKET Filed Jan. 26, 1951 M FIE i.

INVENTOR. FOLMER J. BONNESEN I BY Patented July 29, 1952 I r ATE i 3 4 957,? I" 7, {mac-Ton TlLT-BACK sna'rnRAoKE'r Folmer jgBonnesen, Iowa 7Application January 26, 1951, seri l No. 297,392:

This inventionrelates to seat construction, and more particularly toa-tiltable driver's seat for a tractor. I

A main objeotpf the"invention is to provide a novel and improved driversseat construction for a tractor which is arranged so that the seat maybe tilted to an out-ofethe-way position enabling the driver to stand upat times while driving the accidentally being tilted to inoperativeposition,

and being easy to manipulate when it is desired to move the seat to itsinoperative position, or to move the seat from its inoperative positionto its operative position.

Further objects and advantages of the invention will become apparentfrom the following description and claims, and from the accompanyingdrawings, wherein:

Figure 1 is a fragmentary, side elevational view of a tractor providedwith an improved tiltable seat structure in accordance with the presentinvention;

Figure 2 is a cross-sectional view taken on the line 22 of Figure 1;

Figure 3 is an enlarged cross-sectional, detail View taken on line 33 ofFigure 2;

Figure 4 is a cross-sectional, detail view taken on line 4-4 of Figure3;

Figure 5 is a fragmentary cross-sectional, detail view taken on line 5.5of Figure 3.

Referring to the drawings, II designates a conventional tractor providedwith the usual steering wheel I2 mounted on the frame I3. Designated atI4 is an upwardly and rearwardly inclined seat post which is secured tothe frame I3 rearwardly of the steering wheel I2 and which is formed atits top end with the horizontal,-

connected by cross-bars I I, I1. The depending;

longitudinal flangesof theangle I o'ars20, 20 are pivotally connectedtothe've'rtical" flanges of the angle-bars I6; I6 by'a' transverse rod 22extending through the rear portions'of said flanges and secured by thecotter pins 23', '23 extending through the rod and located inwardlyadjacent to the vertical flanges of the angle bars I6, I6. Designated at24 is the seat which is secured to the angle bars 20, 20 by bolts 25extending through the crossbars 2| and the top flanges of the angle barsand threadedly engaging in the lower wall 26 of the seat 24, as shown inFigure 5. As shown in Figure l, the seat 24 may be swung rearwardly tothe dotted line, inoperative position shown insaid figure, the seatpivoting around the transverse rod 22.

Designated at 21 is a generally U-shaped bail member which is pivotallysecured to the vertical flanges of the angle bars 20, 20, as by atransverse rod 28- extending through the ends of the arms of said ballmember and through the vertical flanges of the angle bars 20, 20, asshown in Figure 4. The U-shaped bail member 21 is formed with the spacedloops 29, 29 adapted to engage around the forward ends of the respectiveangle bars I6, I6 in the manner shown in Figure 3, to thereby lock theseat 24 in its operative position; Secured to the bight portion of thebail member 21 is the curved handle loop 30, said handle loop beinggenerally U-shaped and being formed with the forwardly offset bightportion 3|. The member 30 serves both as a handle for rotating theU-shaped member 21 out of locking position, and also as a weight to biassaid member 21 toward the locking position thereof shown in Figure 3.

To move the seat 24 to its inoperative position, it is merely necessaryfor the operator to grasp the bight portion 3| of handle 30 and pulloutwardly thereon, causing the U-shaped member 2'! to be rotated out ofengagement with the forward ends of the angle bars I6, I6, the upwardpull on the handle 30 causing the seat 24 to be rotated upwardly andrearwardly to the dotted line position shown in Figure 1, wherein theweight of the seat will maintain said seat stationary until the operatordesires to restore the seat to its normal, horizontal position shown infull lines in Figure 1. When the seat is returned to its horizontalposition by being rotated counterclockwise from the position shown indotted view in Figure l, the U-shaped locking member 21 slips over thebeveled edges IQ of the angle bars l6 and lockingly engages around thefront ends of said angle bars (6 in the manner shown in Figures 1 and3'. As above explained, the weight of the handle 30 will then maintainthe U-shaped locking member 21 in looking position, thereby securing theseat 24 in its horizontal position.

While a specific embodiment of an improved tiltable seat structure fortractors has been dis out of engagement with said bracket, a seat closedin the foregoing description, it will be understood that variousmodifications within the spirit of the invention may occur to thoseskilled in the art. Therefore, it is intended that no limitations beplaced on the invention except as defined by the scope of the appendedclaims.

What is clamied is:

1. In a tractor, an'upwardly and rearwardly inclined seat post, ahorizontal, upwardly facing, generally channel-shaped bracket secured tothe top end portion of said seat post and projecting forwardly over saidseat post, a seat pivoted to the reartportions of the side flanges ofsaid bracket for swinging movement in a vertical plane, a U-shaped bailmember pivoted to said seat and being arranged to lockingly engage overthe forwardly projecting portion' of said bracket, and a handle securedto said bail superimposed upon and rigidly secured to said structure,and a U-shaped bail member arranged transversely of said structureadjacent the other end thereof and having the free ends pivotallyconnected to said structure for swinging movement in a vertical planewith its bight engageable with the other end of said bracket.

1 FOLTMEER J. BONNESEN.

REFERENCES crrnn The following references are of record in the file ofthis patent: i

UNITED STATES PATENTS; 1

Roeder Aug. 7, 1951

